export default function s3Storage(opt: any): {
    name: string;
    downloadFile: (fp: string, options?: Record<string, any>) => Promise<any>;
    uploadFile: (fp: any, data: any) => Promise<import("@aws-sdk/client-s3").CompleteMultipartUploadCommandOutput>;
    fileExists: (fp: any, options?: Record<string, any>) => Promise<any>;
    getFileSize: (fp: any, options?: Record<string, any>) => Promise<any>;
};
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